[Patch] Tag checker: report codepoint of unusual Unicode character

[simon04]

Suggested in ticket:18740#comment:2

Note: the screenshot shows the problem and suggests changing the message reported by JOSM validator: it should display the Unicode code point (in the standard form U+NNNN with 4 to 6 uppercase hexadecimal digits) at end of the message, for proper identification (and possibly the character name if you have the Unicode character database; if it is non combining with the general category "W*", "P*" "S*", "N*", "L*", the literal character should be displayed between quotation marks, like "‹ɛ›" here)

[simon04]

In 15994/josm:

fix #18741 - Tag checker: report codepoint of unusual Unicode character

[verdyp@…]

Reopen for "name:bm"="Esipaɲi". This is the standard name for Spain, translated in Bambara (a national language of Mali, also spoken by minorities in a large surrounding region, with ~14 million speakers in Mali, Burkina Faso, Côte d'Ivoire, and Guinea).

It uses the lowercase Latin letter "ɲ" (U+0272), whose capital is "Ɲ" (U+019D).
There's also the letter "ŋ/Ŋ" (U+019E/U+0273).

These two letters are part of the alphabet of Bambara, standardized in Mali since 1982:

A B C D E Ɛ F G H I J K L M N Ɲ Ŋ O Ɔ P R S T U W Y Z
a b c d e ɛ f g h i j k l m n ɲ ŋ o ɔ p r s t u w y z

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These two letters are also used for other Mandingue languages in the same region and written with a Latin alphabet, such as:

• Dioula [ISO 639: dyu] (spoken by ~20 millions in Côte d'Ivoire, Burkina Faso, Mali, Guinea, and Ghana)

A B C D E Ɛ F G H I J K L M N Ɲ Ŋ O Ɔ P R S T U V W Y Z
a b c d e ɛ f g h i j k l m n ɲ ŋ o ɔ p r s t u v w y z

• Mandinka [ISO 639: mnk] (spoken in Senegal and Gambia):

a b c d e f g h i j k l m n ñ ŋ o p r s t u w y
A B C D E F G H I J K L M N Ñ Ŋ O P R S T U W Y

• Eastern Maninkakan [ISO 639: emk] (spoken in Guinea, Mali, Gambia, Sierra Leone, Liberia, and Côte d'Ivoire)...

[anonymous]

oups this report on letters should have been in #18740, where I reposted it.